Electromagnetic machine or concentrator.



No. 853.475. PATENTED MAY 14, 1907. J.H.RYAN. ELECTROMAGNETIC MACHINE 0R GONGENTRATOR.

APPLICATION FILED JULY 14. 1904. I

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7 0 9 1 1 Y. A M D E T N B T A No. 853,475. J. H. RYAN. ELECTROMAGNETIC MACHINE 0R G'ONGENTRATOR.

APPLICATION FILED JULY, 1904.

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UNITED sragns r rnnr OFFICE.

JOHN HAUFREY RYAN, OF PORTLAND, OREGON, ASSIGNOR OF ONE-THIRD TO 0. B. STUBBS AND ONE-THIRD TO CHARLES N. RYAN, OF PORTLAND,

OREGON.

Specification of Letters Patent.

Patented May 14, 1907.

Application filed July 14, 1904. Serial No. 216,606.

To all whom it may concern:

Be it known that 1, JOHN HAUFREY RYAN, a citizen of the United States, residing at Portland, county of Multnomah, and State of Oregon, have invented new and useful Improvements in Electromagnetic Machines or Concentrators, of which the following is a specification.

My invention relates to improvements in electro-magnetic machinesorconcentrators, in which, hollow revolving magnetized cylinders or rolls, operate in conjunction with non-magnetic scrapers, and the objects of my improvements are, to concentrate or separate magnetic iron from crushed ores, sand, or any other substance that may contain magnetic iron. I attain these objects by the mechanism illustrated in the accompanying drawin s, in which or roll Fig. 4.: elevation of the link belt driv- I ing arrangement; Fig. 5: is a vertical section of machine showing flow of material, and method of separating the iron from the crushed ore, sand, or other material.

The assembling of the different parts above mentioned, will be as follows,- to wit:

The magnets A, are built stationary, and are extended into the'frame-work I, one end being suspended and free, allowing the magnetism to be'distributed equally in all directions. The cylinders or rolls B, are built with one end open, and with a flange at the other end, in which is fastened the shaft, H; this shaft extends out into the frame work, I, in such a manner that it will be suspended in two boxes or journals, allowing the open end of the cylinder or roll, B; to be passed over and around the free end of the suspended magnet, A and to revolve around the magnet, A; substantially as shown.

In the rear of the revolving cylinders or rolls, B attached by a hinge to the frame work, I are the scrapers, O; and these are held against the revolving cylinders or rolls, B; by springs, D.

The aprons, K; are built on an incline, so that the upper end will come under and just back of the vertical center of the cylinders or rolls, B the lower end connecting with the opening into the chute to carry the magnetic iron that has been separated away. The lower half of the apron is attached to the frame work, I; just under the lower end of the upper half, and is directed toward the vertical center of the cylinder or roll immediately under it, and its use is to deflect the feed upon this cylinder or roll.

The machine is driven by a power pulley, E; attached to the top shaft, H; which operates the sprocket wheels and link chain belt, G; which in turn revolves the different cylinders or rolls, B substantially as shown. In the process of concentration with this machine, the ore or material to be treated, is passed into the receiving hopper, L from which it is discharged onto the 'lirst cylinder or roll, B; this cylinder or roll, revolves to ward thenext cylinder or roll opposite and below it, carrying the material to be treated, over where it falls on the second cylinder or roll, and this process is continuous from one roll to the other, until the material to be treated, has passed to last cylinder or roll, and passed into the discharge opening and into the conveyers. As the material to be treated falls upon the cylinders or rolls, B; all of the magnetic iron that comes in contact with the revolving magnetized cylinders or rolls will adhere, and the balance of the *material will pass on over to the next cylinder or roll, and will continue from one to the other, until finished. The magnetic iron that adheres to the cylinders or rolls, is carried around from the material being treated, and carried up against the non-magnetic scrapers, C; where it is scraped away from the magnetized. cylinders or rolls, and drops onto the aprons, K; where it is discharged into the ore chutes, N and falls to conveyors to be carried away, the refuse material continues on its way down from cylinder or roll, to cylinder or roll, at last discharging through the delivery chute, M into a conveyer, to be carried away.

I. am aware that prior to my invention, magnetic concentrators or separators have been made, but the mechanical construction and plan of operation is not the same, in the whole.

I claim:

1. In a i'nagnctic separator, a revolving shell having a smooth outer surface and an open end, a iixed magnet extending through the open end of said shell and arranged to produce a magnetic field substantially concentric thereto, and a scraper bearing on said shell, as set fort 2. In a magnetic separator, a revolving shell having a smooth outer surface, a fixed magnet comprisin a Winding exterior to the shell and a cylindrical pole-piece Within the shell and arranged to produce a magnetic field substantially concentric thereto, and a scraper bearing on said shell, as set forth.

3. In a magnetic separator, a smooth-surfaced revolving shell one end of which is open and the other end of Which carries a journal, a fixed magnet comprising a Winding JOHN HAUFREY RYAN. Witnesses:

CIIAs. H. RYAN, H. R. LITTLEFIELD. 

